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3 marksTransformers

CSEC Physics · May/June 2018 · Paper 2 · Question 6(b)(iii)

A transformer has 5000 turns in its secondary coil and 50 turns in its primary coil. The voltage supplied to its primary coil is 12.0 V a.c. and a current of 6.0 A flows in its primary coil.

the maximum secondary current if the transformer is 100% efficient.

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Other parts of this question

  1. 6(a)(i)State the name of the parts labelled A, B, C and D in Figure 6.[4 marks]
  2. 6(a)(ii)Identify the type of transformer shown in Figure 6.[1 mark]
  3. 6(a)(iii)State the formula that relates voltage, V, to number of turns, n, in a transformer.[1 mark]
  4. 6(b)(i)Calculate the input power of the transformer.[4 marks]
  5. 6(b)(ii)the voltage across the secondary coil[2 marks]

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